Transfer assembly



J. G. KERR TRANSFER ASSEMBLY June 19, 1951" Filed Dec. 5, 1946 2 sheets-sham 1 L Z ,r fl- Ll.

June 19, 1951 J. KERR 2,557,875 TRANSFER ASSEMBLY Filed Dec. 5, 194$ 2 Shets-Sheet 2 10, Fig.2].

112 A n T was; 162 1112 I H1113. Q -1 2 ,2

i atented June 19, 1951 UNITED STATES PATENT @EFHCE TRANSFER ASSEMBLY James G. Kerr, Short Hills, N. J.

Application December 5, 1946, Serial No. 714,185

7 Claims.

those skilled in the arts to which it relates in the light of the following explanation and detailed description of the accompanying drawings illustrating what I at present believe to be the preferred embodiments and mechanical expressions of the invention from among various other forms, arrangements, combinations and constructions, of which the invention is capable within the spirit and scope thereof.

It is advantageous in the art of duplicating by the use of typewriters or the like machines, to

A provide prepared unitary transfer assemblies 01' copy sets whereby one or a plurality of copies or records may be made when the original is being typed or otherwise printed. Such prepared unitary transfer assemblies usually provide transfer or carbon sheets interposed between and secured to record sheets to thereby form a unitary assembly consisting of a transfer and a record sheet, wherein the transfer and record sheets are maintained in desired relative positions until separated.

The advantages inherent in such assemblies are well recognized in the art and will not at this time be dwelt upon in detail. However, to generally characterize a few of the results, such assemblies of the general character with which I am concerned, provide a prepared duplicating unit having all of the elements thereof properly collated, which arrangement greatly facilitates and expedites the use thereof by the machine operator, and such assemblies are form-ed to maintain the unitary structure and proper relationship of the elements thereof under the normal handling conditions to whichv subjected.

The transfer assemblies of the unitary class which are now known and with which I am familiar, while endowed with the aforementioned and other advantageous characteristics, have not proven entirely satisfactory in actual use, due to certain forms of construction which have reduced the value thereof in actual practice and have offset the advantageous results which should be obtained from the use of this type of assembly.

The transfer sets of the prior art provide unitary assemblies of transfer and record sheets, but the elements of such assemblies are usually secured together at either the top or bottom by means of a perforated stub to which the transfer sheets are generally permanently secured by an adhesive. This type of transfer assembly, using a perforated stub for securing the elements of the assembly in proper relative positions is objectionable for several reasons. Initially, the use of a perforated stub on unitary assemblies, particularly when used in correspondence work, makes the positioning of an original super-imposed sheet or letterhead on the assembly difficult, due to the extension of the stub beyond the detached size of the record or copy sheets; additionally, the use of a stub is uneconomical for more paper is required, and the transfer sheet which extends to the stub, must be of greater size than required to perform the duplication. Transfer sets which are combined into a unitary structure by means of a top or bottom perforated stub, reduce the speed of separation of the record sheets from the transfer sheets, and a ragged edge remains where the record sheet has been torn from the stub along the perforated or otherwise weakened line. Obviously, ragged edges on record sheets are objectionable where vertical filing systems are used, for the tufts along the record sheet edge interfere with the other filed records and the operations of the file clerk. In the use of a transfer assembly having a perforated stub at either the top or bottom, the user runs the risk of an uneven tearing along-the perforated line which obviously affects the filing size and appearance of the record sheets, or if perforations at the stub are not weakened sufficiently in manufacture, the copies may be mutilated when the stub is detached, even to the extent of tearing off important references in the typed matter, or if the perforations are too weak, the stubs and carbon may become detached in shipment or handling by the operator, with resulting waste and difliculty. When a perforated stub is placed at the top of an assembly, it is impossible to make erasures when the assembly is in position within a typewriter or the like machine, unless the stub is torn off and the car- 'bon extraction feature is lost.

The transfer assemblies of the prior art, in so far as I am aware, make no provision for maintaining an original super-imposed sheet in proper position relative to the record sheets, nor for maintaining each assembly of a variable plurality of assemblies in proper relative positions. Such results are highly desirable in certain types of duplicating and such results are accomplished by certain forms of my invention.

he transfer assembly of my invention has overcome these defects of prior art assemblies,

3 and it is therefore a primary object of my invention to provide a transfer assembly requiring no preforated or the like stub for maintaining the elements of the assembly in proper relative positions.

A further object of my invention is to provide a transfer assembly having no extension at the top or sides greater than the over-all dimensions of the record and original sheets to facilitate assembly and alignment of parts.

A further object of my invention is to provide a transfer assembly in which the transfer sheets are removably attached to a permanent part of the record sheets.

Another object of my invention is to provide a transfer assembly in which the transfer sheets are removably attached by an adhesive to a per manent part of the record sheets preferably at spaced points therealong.

Another object of my invention is to provide a transfer assembly in which the transfer sheets are removably attached to a permanent part of the record sheets by an adhesive in such manner that upon separation of the record and transfer sheets, the former will not be marred, torn or otherwise adversely affected at the points of adhesion, and that no tufts or sections of the latter will adhere to the former.

It is also an object of my invention to provide a transfer assembly in which the transfer sheets are attached to the record sheets for quick removable therefrom, preferably by a peeling or stripping action.

And yet another object of my invention is to provide a transfer assembly having the transfer sheets removably attached to a permanent part of the record sheets in such manner that the edges of the transfer and record sheets are free of one another, to facilitate separation thereof.

A still further object of my invention is to provide a transfer assembly in which the transfer sheets are removably attached to the record sheets either by means of a pressure-responsive adhesive, a thermo-plastic cement or a so-called low adhesive cement, none of which have a deleterious effect on the record sheets.

Another object of my invention is to provide a transfer assembly in which the transfer sheets only extend over the written part of the area of the record sheets adapted to receive the copied material.

A further object of my invention is to provide a transfer assembly in which the transfer sheets are dimensioned and so positioned in the assembly to present a selective grip at the top and bottom of the assembly for quick separation of the record and transfer sheets.

Another object of my invention is to provide a transfer assembly in which access may be easily gained to the printed area while the assembly is in position in a typewriter or the like machine.

It is also an object of my invention to provide a transfer assembly in which the record sheets and the original sheet are of common size, without any top or bottom extended stub.

A further object of my invention is to provide a transfer assembly which may be returned to a typewriter or like machine before the transfer and record sheets have been separated and the original alignment of typing will be maintained with the original sheet due to the common dimensions of the original and the record sheets.

Another object of one form of my invention is I original sheet is removably attached to the assembly and in which the transfer sheets are removably attached to each other.

A still further object of my invention is to provide a transfer assembly comprising a plurality of transfer, record sheets, and an original sheet of such relative dimensions and so collated, that the top or lead in edge of the assembly is of reduced thickness relative to the rest or body of the assembly, to thereby facilitate insertion of the assembly in a typewriter.

A further object of my invention is to provide a transfer assembly in which the elements thereof are so arranged and fastened together, that the extraction or separation of the various elements is fast and positive.

A further characteristic of this invention is to provide a transfer assembly of such character that the operation of extraction or separation of the various elements is not likely to result in tearing, or otherwise mutilating any of the elements of the assembly.

It is also an object of my invention to provide a transfer assembly in which the assembly may be used in sidewise position in a typewriter or other duplicating machine without substantially reducing the amount of the written area which may be used.

Another object of my invention is to provide a transfer assembly which may use the so-called one-time carbon sheets without the difliculty of tearing them from the pasted stub to which they are customarily attached or mutilating them in the process, so that in cases where economy is a factor, such carbon or transfer sheets may be used again in their original size, free from wrinkles or tears.

A further object of this invention is to provide a transfer assembly, the elements of which are so secured together and collated that sections thereof may be separated quickly and positively from the major assembly for further procedure, and the elements of such sections will be maintained in proper relationship.

A further object of my invention in certain of its forms, is to provide a transfer assembly in which the various elements thereof may be attached, separated and attached again by the application of pressure, preferably a rubbing pressure.

Another object of my invention is to provide a transfer assembly which may be used with equal effectiveness and facility on letterheads, variable original invoices, or on various other kinds of forms.

A still further object of my invention is to provide a transfer assembly which is economical and simple to produce.

With the foregoing general objects, features, and results in view, as well as certain others which will be apparent from the following explanation, the invention consists in certain novel features and designs, construction, mounting and combination of elements, as will be more fully and particularly referred to and specified hereinafter.

This application is a continuation-in-part of the pending application filed by me May 15, 1945, Serial Number 593,933, for improvements in and relating to Transfer Assemblies, now abandoned.

Referring to the accompanying drawings:

Fig. l is a view in perspective showing the transfer and record sheet in separated positions prior to being attached.

Fig. 2 is a view in perspective of a transfer assembly in operative position.

Fig. 3 is a view in side edge elevation, with parts thereof broken away, of a transfer assembly and an origin-a1 sheet combined therewith.

Fig. 4 is a view in perspective of a part of a transfer assembly, showing how the transfer sheet may be detached from the record sheet for erasing when the assembly is disposed in a typewriter or like machine.

Fig. 5 is a view in vertical section of a transfer assembly, showing in detail one of the spots where pressure has been applied to the adhesive, parts thereof being broken away.

Fig. 5a is a view in perspective of a transfer sheet, showing in detail the adhesive-coated strip on the transfer sheet, parts thereof being broken away.

Fig. 6 is a view in perspective showing the transfer and record sheets of a modified form of my invention in separated positions prior to being attached.

Fig. 7 is a view in perspective of the modified form of my transfer assembly in operative position.

Fig. 8 is a view in side edge elevation, with parts thereof broken away, of the modified form of my transfer assembly.

Fig. 9 is a view in perspective of a further form of my transfer assembly, the elements thereof being shown in separated positions prior to being attached.

Fig. 10 is a View in side edge elevation of the transfer assembly of Fig. 9, with parts thereof broken away.

Fig. 11 is a view in side edge elevation of the transfer assembly of Fig. 10 separated into two units or sections, with parts thereof broken away, and one intermediate transfer sheet discarded.

Fig. 12 is a view in perspective of another form of my transfer assembly, the elements thereof being shown in separated positions prior to being attached.

Fig. 13 is a View in side edge elevation of the transfer assembly of Fig. 12, with parts thereof broken away.

Referring to the accompanying drawings, I

have used the numeral l to designatea transfer or carbon sheet which forms one element of my unitary assembly, which sheet is provided with the usual carbonized body portion 3. The transfer sheet I, is formed with a noncarbonized extension strip 5, which preferably, though not necessarily, extends the entire length of the transfer sheet along the bottom edge thereof to provide a finger grasp or selective grip area for the user of the transfer assembly, for a purpose to be hereinafter described in detail. Disposed along the opposite or top edge of the transfer sheet i, is another extension strip l, which strip preferably, though not necessarily, extends along the entire length of the top edge of the transfer sheet. I apply a coating of adhesive 9 to the strip 1 on the same side thereof as the carbonthough not necessarily, of greater dimensions than the dimensions of the transfer sheet I. It is to be understood that any number of transfer and record sheets may be added to the assembly of Fig. 3, of the drawings to produce more copies.

' In Fig. 1, of the drawings, I have illustrated in separated positions prior to attachment, the two elements, namely the transfer and the record sheet, which when combined, produce a unitary transfer assembly. In combining or adhesively attaching the two elements to form a unitary assembly, the transfer sheet I is attached to the record sheet in such position that the depending selective grip strip 5, extends below the lower edge of the record sheet I i, and the upper noncarbonized adhesive-coated strip '8 is in position attached by means of the adhesive to a permanent part of the record sheet if at a point spaced below the top edge of the record sheet. By reference to Fig. 2, of the drawings, it will be evident that I have so dimensioned the transfer sheet relative to the record sheet that the former is of a size to only cover the portion of the record sheet upon which the typed, or the like, matter will be duplicated. In Fig. 3 of the drawings, I have disclosed a transfer assembly combined with an original sheet i3, and it will be recognized that the area i5 of the original sheet which extends above the upper edge of the transfer sheet l, is that portion having the letterhead, or the like, indicia printed thereon, and, Of course, this area will not be typed or otherwise printed upon. Thus, it is evident that by so dimensioning the transfer sheet that it covers only the print, or the like, receiving area of the record sheet, I have provided for an economy in the use of paper and carbon. While I have specifically mentioned original sheets having letterheads thereon, it is to be understood that my transfer assembly is intended to be used with various types of forms, and the like, where variable duplication may be required.

It will be recognized by referring particularly to Figs. 2, 3 and 5, of the drawings, that I attach the transfer sheet I, directly to the record sheet II by means of the adhesive 9, and that the area of the record sheet which contacts and is adhesively secured to the transfer sheet comprises a permanent part of the record sheet, and, therefore, it is desirable that the act of detaching or peeling off the transfer sheet from the record sheet after the typing or other duplicating act, produce no marring or other injurious effects upon the record sheet. In referring to a part of the record sheet as being permanent, I intend to define a part of such sheet which is not designed for detachment therefrom and will remain as an actual part of the record sheet.

It has been necessary in devising a unitary transfer assembly of this general type to provide an attaching means by which the transfer sheet may be removably attached to the record sheet without defacing the latter. By means of the adhesive materials which I am about to describe, I have been enabled to removably attach the transfer sheet to the record sheet, so that when the former is detached from the latter the effects of the adhesive will not be ap-- parent upon the permanent part of the record sheet and thus will not detract from the value or adversely effect the ease of handling and filing thereof. Thus, by the use of these and other generally similar adhesive materials in combination with transfer and record sheets,

I have succeeded in producing a unitary transfer assembly of this class which requires a recrd sheet of no special structure and having no extraneous elements attached to or formed therewith, and I have also provided a transfer sheet of an economical type which may be inexpensively and easily produced. As a result, therefore, of the elements I have combined to form the assembly, I have provided a unit which is simple and economical to make and to use.

As three examples, from among several, of the types of adhesive which may be used successfully in removably securing together the elements of the several forms of transfer assemblies, I may use:

(1) A pressure responsive adhesive (2) A thermo-plastic cement (3) A low adhesive cement The pressure responsive adhesive which I may use, comprises a pressure-responsive transparent adhesive, which forms no fixed bond in the ordinary sense of drying as do adhesives which are customarily used in this art. The conventional adhesives, which are ordinarily employed for attaching the elements in various types of transfer assemblies, penetrate the fibers of the paper to which they are applied, and then dry or set, forming a bond which under separating action, removes these fibers either from the record sheet to which the transfer sheet has been attached, or from the transfer sheet to the record sheet. It will be recognized that in either case the results are objectionable; in the former case, holes and rough spots remain on the record sheet, and in the latter case sections of the carbon coating are deposited on the record sheet.

Ihe pressure responsive adhesive which I may use for attaching the transfer sheet to the record sheet is composed of materials having inherent adhesive qualities which are operative under a rubbing or other suitable pressure, and when under such pressure, the adhesive adheres, but when properly constituted in a near solid form, the adhesives free themselves readily under a twisting or peeling off action leaving no evident deposit on the materials to which they were attached.

As one example of a pressure responsive adhesive, from among several, which may be suc cessfully used to produce an adhesive having the required characteristics to perform the func tion required in attaching the transfer sheet to the record sheet of my transfer assembly, I may compose my adhesive of the following materials in substantially the following proportions:

Per cent 1. Ceresine wax 50 2. Gum arabic 30 Petrolatum oil 20 I have found paraffin could be substituted for the ceresine wax of the above composition with substantially similar results.

The thermo-plastic cement which I may use has the quality of not penetrating the fibers of the paper, as described in connection with the pressure responsive adhesive, and is removable therefrom at the time the transfer sheets are pulled out with the same results; i. e., not tearing the record sheets or tearing tufts of carbon tissue and leaving them on the record sheets. Essentially, this type of adhesive has waxes or compounded resins or synthetic rubher or a combination of such elements and does not dry hard but has the quality of removing itself from the fibers of the record sheets by a slight tacky action.

The low adhesive cement which I may use with equally excellent results may be applied in fluid form in small spots to the transfer sheets or the record sheets, or may be spread on such sheets.

In producing transfer assemblies, the transfer sheets are manufactured with the upper and lower extension strips 5 and l, and the upper strip is coated on the proper side with a pressure type or thermo-plastic adhesive having the characteristics outlined above, and then the adhesive is permitted to set or congeal and remains in its dry state throughout the operation of attaching the transfer sheet to the record sheet, through the use of the assembly in per forming its duplicating function, and also when the transfer sheet is being detached from the record sheet. At any convenient time after the coating of adhesive 9 on the strip "i has sufficiently "set or congealed, the transfer sheet is disposed in position over the record sheet II, with the carbonized area 3, of the transfer sheet disposed in the customary manner facing the record sheet. The transfer sheet is then adhesively attached to a permanent part of the record sheet either by the application of rubbing or other suitable pressure to the coated strip, or by the application of heat, preferably at spaced points along the strip i. Any convenient and desirable pressure or heat applying means may be employed for spot joining the transfer sheet to the record sheet, and after the two sheets are attached in the manner outlined above, it will be apparent that the transfer sheet will be joined or attached to the record sheet at a plurality of spaced points or spots along the strip i.

If the low-adhesive cement is used, it is applied in fluid form and then the sheets are attached together prior to setting of the cement.

Referring particularly to Figs. 2 and 5 of the drawings, I have used the numeral H to designate the spaced spots along the strip '5, where pressure or heat has been applied thereto to cause an adhering reaction in the adhesive 9, to thereby attach the transfer sheet to the record sheet, it being understood that the transfer and record sheets will be free of and not attached to each other where no pressure or heat has been applied.

While I have disclosed in the drawings four such spots ll, it is to be distinctly understood that I may join the transfer sheet to the record sheet by one or by any number of spot applications, and it is also possible and within the scope of my invention to apply pressure or heat along a substantial portion of strip ii. I desire,

- however, to dispose the outermost adhering spots I! at points spaced inwardly from the vertical edges of the transfer sheet so that when an assembly is disposed in operative position within a typewriter, or the like duplicating machine, the transfer sheet may be detached from the record sheet so that the operator of the machine may, with facility, gain access to the printed, or the like material for making erasures therein. In Fig. 5, of the drawings, I have illustrated in detail how the operator of the typewriter, or the like, may, by inserting his finger under either end of the strip 1 where no adhering reaction has been produced by pressure or heat on the adhesive,

finger with the utmost ease between the transfer sheet and the record sheet for the aforementioned purposes.

The structural arrangement of the various elements of my transfer assembly and the relative disposition of such elements in the unit have been arranged to provide for speedy detachment of the original, the transfer and record sheets from one another after the typing, or the like operation, has been completed. In Fig. 3 of the drawings, I have illustrated a unit with an original sheet 95 combined therewith, and it will be evident from this figure of the drawings particularly, that the user of the assembly may separate the various sheets thereof by grasping the extension strip 5 of the transfer sheet with the fingers of one hand and by grasping with the fingers of the other hand the area I5, of the original sheet [3 and the area as of the record sheet H, which areas extend above the topmost edge of the transfer sheet i. or twisting in opposite directions on the grasped areas l5 and I9 and the extension strip 5, the adhesive 9 at the adhering'spots ll will be separated and the elements of the assembly will be quickly separated.

Inasmuch as the record sheets do not have the usual and undesirable perforated stubs, during the extraction of the carbon the operation is faster and more positive because the record sheets do not have to be detached from a weakened line or perforation on the stub as has been the practice with the Snapout or perforated stub product in the past. Furthermore, the action is more rapid because the transfer sheet is lightly attached, as will be pointed out below, and easily removed as compared with the conventional product in which perforated stubs areemployed. When such assemblies of the conventional prodnot have many parts, the detachment of the stub is difficult and slow because of the resistance of the perforations to severance. Also, the conventional product with the stub involves the hazard of tearing parts of the record sheets and leaving them attached to the stub or parts of the stub attached to the record sheets, because in the severance of the perforations joining the stub to the record sheets, the action starts in the center immediately below the grasp of the thumb and at that point the detaching action is resisted by all of the ties of paper between the perforated cuts, which must be broken by a straight pull away from the thumb and forefinger. As this detachment proceeds from the grasping thumb and forefinger away from the center and toward the edges of the assembly, the action becomes more and more angular and at the same time more rapid because of the momentum gained in the snapping, Thus, the danger of tearing down into the record sheets or up into the stub, leading to the difficulties referred to above, increases. With the absence of any stub as in the assemblies of this application, these difficulties are avoided.

While I have illustrated in the drawings the use of my assembly in making only one copy, it will be evident that I may make any number of Thus, by pulling.

10 I copies desired. Thus, referring to Fig. 3 of the drawings, it will be recognized that to produce another copy it would merely be necessary to join another transfer assembly to the assembly disclosed therein.

While I have described adhesive compositions in some detail which I have found operate successfully in the combination of elements forming the transfer assemblies, I desire to make clear that any adhesive generally having the required characteristics and reactions outlined hereinabove, falls within the spirit of my invention, and I do not intend to limit this invention to the use of any particular adhesive in securing the elements of the assembly tog her.

In Figs. 6, 7 and 8 of the drawings, I have disclosed a modified form of my invention which will be of particular value in certain operations where provision must be made for a variable number and arrangement of record sheets and originals, which may, of course, be letterheads, invoices, or the like. In such operations it may be found necessary to retain an assembly of record sheets and originals together as a unit for later checking, correction, or later entry, transit, or for temporary filing.

Referring particularly to Figs. 6, 7 and. 8 illustrating the modified form of my invention which is of particular utility where a considerable number of duplicates are to be made, and where it is of importance to maintain the original disposition of the elements thereof, I provide a duplicating set comprising a plurality of unitary transfer assemblies including transfer sheets la'and record sheets I la, the transfer sheets, as in the preferred embodiment of my invention, being formed with extension strips la disposed preferably, though not necessarily, along the entire upper transverse edge of the transfer sheet, and having'a coating of adhesive Sadisposed on one side of said strip in the same manner as in the preferred form of my invention. I dispose a further extension strip 5a preferably, thought not necessarily, along the entire opposite or bottom edge of the transfer sheet, which extension strip is provided with a coating of adhesive 91) on the opposite side of said strip from the side on which the adhesive coating 9a is applied to the upper strip 1a.

A duplicating set embodying a plurality of individual unitary assemblies of this modified type of my invention is shown in Fig. 8 of the drawings wherein it is evident that the depending extension strips 5a depend below the lower edges of the record sheets I la so that each depending strip 5a will be attached to the next adjacent depending strip by means of the adhesive 91) when pressure or heat is applied thereto, the transfer sheets and the record sheets being attached together by means of the adhesive 9a which is applied to the upper'strips la. It will be apparent that the adhesive coating 9b on the outer or uppermost transfer sheet la, of a duplicating set will be free and unattached to any of the other transfer sheet extension strips, and it is this adhesive coating 91) on the outermost or uppermost transfer sheet I, which I utilize for attaching an original sheet 13a, to the duplicating set so that the initial relative collation of each of the elements, including the original sheet, may be maintained throughout any operational routine to which such duplicating set may be subjected. In the application of an original sheet l3a, to the duplicating set, such sheet is disposed in position against the outermost transfer sheet with a portion I9 adjacent the lower edge thereof depending below the lower edges of the record sheets so that the lower edge of said original sheet 1311 is in a substantial alignment or in substantially the same horizontal plane with the lower edges of the extension strips 5a of the plurality of transfer sheets la. It will be recognized especially from Fig. 8 of the drawings, that the depending portion is of the original sheet Kid is disposed in position for contact with the adhesive coating 5b, which is applied to the extension strip 5a, of the outermost transfer sheet, and that such original sheet may be spot joined to the adhesive 9?) of the extension strip of the outermost transfer sheet upon the application thereto of rubbing or other suitable pressure from the fingernail or the like to thereby combine such original sheet into and forming a cooperative element of the entire duplicating set, or it may be spot joined by heat application.

In the manner outlined above, I have provided a duplicating set in which the interleaved trans fer sheets are attached to adjacent record sheets at the tops thereof, and wherein the depending or extension strips of each transfer sheet are all joined together and the original sheet adjacent its lower edge is attached to the extension strip of the outermost transfer sheet.

Such a duplicating set of variable number or arrangement of parts comprising a plurality of unitary transfer assemblies may be successfully subjected to a multiplicity of operational routines without disturbing the proper relative positions of each element within the art.

When it is desired to separate the elements of such a duplicating set, the original sheet may be quickly detached from the uppermost transfer sheet by a downward peeling action thereof, and then the remaining record sheets may be separated from the interleaved transfer sheets in the same manner as described with reference to the preferred form of my invention.

In the commercial use of transfer assemblies of the general character of the various forms illustrated and described in this application, it is frequently advantageous to combine two or more related forms for original entry, such as order and invoice forms, and then to separate them so that each may follow its required procedure. In many cases one or more of the units separated from the original set may go through and be exposed to several stages or steps of physical handling and entry for filing and mailing, requiring the attachment of a plurality of record sheets in each of the separated units referred to, together with the transfer sheets disposed therebetween. In Figs. 9, l and 11, of the drawings, I have illustrated a further type of transfer assembly which is especially suitable for the uses and purposes outlined above.

In this form of invention, I have used the numeral 13!), to designate an original sheet, the numeral lb, designating a transfer sheet having a carbonized body portion and upper and lower noncarbonized transverse portions lb and b, respectively, these sheets being generally the same as disclosed in the form of the invention illustrated in Figs. 1, 2, and 3, of the drawings.

In this form of my invention, I have applied adhesive 92), along both sides of the upper noncarbonized strip lb of each transfer sheet, and in this particular example of the invention, I have illustrated the transfer sheets as having the low adhesive type cement applied thereto. However, it is to be understood that any of the types of adhesive hereinbefore described, may be used with this form of my invention, or any other ad,-

hesive which will function as required when combined with the transfer sheets of the assembly.

The relative arrangements and dimensions of the original transfer sheets and record sheets may be the same as in the other forms of this invention which I have hereinbefore described, however, I may provide an arrangement of the various elements of an assembly forming means indicating the dividing and separation point or points thereof to provide one or more units separated from the original set. An assembly as illustrated in Figs. 9-11 of the drawings, embodies the highly efiicient and desirable extraction features as well as all. other advantageous characteristics of my transfer assemblies, which have hereinbefore been pointed out.

In Fig. 10, of the drawings, I have illustrated a complete transfer assembly wherein the original sheet 13b, is removably secured to the next adjacent transfer sheet by means of the adhesive on one face of the non-carbonized strip thereof, and each of the remaining record sheets are secured on a permanent part thereof, to each of the adjacent transfer sheets, due to the application of adhesive on both upper faces of the non-carbonized strip. It will be evident that every element of the transfer assembly of Fig. 10, is removably secured within the combination, and it will be further recognized that such an assembly may contain any desired number of record sheets and transfer sheets.

In the separation of two or more units (A and B, Fig. 11 of the drawings) from the original set or assembly as illustrated in Fig. 10 of the drawings, the operator would have to count the copies if they were flush at the top edge, or select them by the distinguishing color of the final part of each unit. If all were of the same color, this would be somewhat slow and difficult and more or less copies than those required would often be separated. In order to overcome this separation difiiculty, I may, when a set is assembled to provide an assembly as shown in Fig. 10 of the drawings, dispose a record sheet Mb, which is at the dividing or separation point between two units, out of line relative to the remaining record sheets, so that the top edge thereof protrudes as at Mb slightly above the top edge of the original and remaining record sheets. In the separation operation, the typist would depress this extended or protruding edge lib with the index finger, drawing the required parts of the unit A away from those of the unit B and opening up the assembly at the point of division between two units.

t will be recognized that while I have shown in the drawings an original set broken down into two units, a set may be broken into more units and a protrusion Mb may be provided at each division point.

The protrusion Mb while serving as an aid to the operator in separating a set into units, performs a further function. The protrusion will serve as a lead in of single thickness toward the typewriter feed rolls thereby substantially increasing the rapidity and accuracy of insertion.

In Fig. 11, of the drawings, I have illustrated how the assembly of Fig. 10 may be separated to provide two or more units for further handling and procedure. In this figure of the drawings, I have separated the complete assembly by use of protrusion Nb and by a peeling or stripping action into two units A and B, the center transfer sheet being removed, and it will be clear that all of the elements of each unit A and B are 13 removably secured together, so that the proper collation of the various elements of each unit will be maintained throughout future handling and procedure, This results from the arrangement in this particular form of my invention, wherein I have applied adhesive to both faces of the upper non-carbonized strip of the transfer sheets.

In Figs. 12 and 13 of the drawings, I have illustrated a further form which my invention may take. In these figures of the drawings, I have used the numeral ific to designate the original sheet of a transfer assembly, the numeral Ic to designate the transfer sheet having the upper non-carbonized area 1c, and the lower non-carbonized area 50, and the record sheet is indicated by the numeral Ilc. It will be recognized that While I have illustrated a transfer assembly in Figs. 12 and 13, which consists of only one record sheet and one transfer sheet, that I may combine in this assembly as many record and transfer sheets as is necessary forthe particular duplicating operation.

The various elements of the transfer assembly of this form of my invention are removably adhesively fastened together by means of a plurality of transversely spaced adhesive spots lilo, which may be applied on the back face of the original sheet 130, so that the next adjacent transfer sheet lc, will be removably fastened to the original sheet. In order to removably adhesively attach the transfer sheet to the next adjacent record sheet, I apply a plurality of transversely spaced spots of adhesive 120, on the face of the transfer sheet to, opposite to that which faces the original sheet, so that the next adjacent record sheet He will be removably adhesively secured to the transfer sheet. The record sheets are also provided with transversely spaced adhesive spots Me, which will adhesively maintain the next adjacent transfer sheet thereto. This process or adhesive application is followed throughout an assembly so that each of the various elements thereof will be removably maintained in proper relationship. It is to be understood that the transfer sheet which is adjacent the original sheet could carry, on the face thereof adjacent the original sheet instead of on the opposite face as shown in the drawings,

adhesive spots in which case the original sheetv would not have adhesive applied thereto, and it will be further apparent, that if this arrangement was followed, then the opposite faces of the record sheets from those shown in the drawings would have adhesive applied thereto. Thus,

it is within the spirit and scope of my invention to apply adhesive' to one face of each element of the assembly so that all of the elements thereof, will be removably adhesively attached together.

It is to be further understood that if the adhesive application of Figs. 12 and 13, is followed in producing a transfer assembly, it is within my contemplation to either use the low adhesive, cement spots illustrated in these figures or to use any other desirable and advantageous type of adhesive which may either be applied in spots, or may be spread on the various sheets. In the event that spot application is used, the outermost spots are disposed inwardly from the vertical edges of the sheets so that the elements of an assembly may be easily separated for access into the assembly for correction of the printed matter.

In all of the illustrated forms of the inven- 14 tion, written copies of size and do not require the addition of perforated stub extensions for purposes of holding the record sheets and transfer sheets together during the handling and typing operations, or for purposes of carbon extraction. Inasmuch as the transfer sheets are positioned within the body of the record sheets and some distance below the top edges thereof, means are provided for a selective grip or extraction feature for the first time within the final filing size of the record sheets.

As the transfer sheets do not extend to the top of the record sheet assembly but are positioned at a distance below their tops, it will be seen that the assembly has reduced thickness at the top where it is inserted in the typewriter and therefore assists the typist in a quick' and accurate insertion and positioning of the assembly. This is particularly helpful in machines with worn feed rolls or smooth platens which cause tuouble with the conventional product because of slipping or unequal pulling action. The conventional product with the stud has the transfer sheet extending almost to the top of the stub, and in certain types of manufacture, the transfer sheet extends to the top edge where it is glued. Hence, it will be seen that the conventional product presents a much thicker assembly at the point where the gripping action of the feed rolls and the platen on the typewriter come into play. The conventional product is either glued at the top edge of the stub or in one or more positions Within the stub, adding rigidity to the stub and resisting the quick and accurate feeding action of the typewriter. The assembly of this invention has the reduced thickness referred to and, as there is no gluing within at least from the top, the various record sheets in the assembly can conform to the curvature of the platen and adjust themselves to the gripping action of the feed rolls quickly and accurately.

It will be recognized that while I have shown the adhesive in Figs. 9, 10 and 11 as being applied to the transfer sheets along both sides of the non-carbonized upper strips thereof in a continuous application, such adhesive may be appliedin spaced spots and such structure will fall within the spirit and scope of my invention.

I claim:

1. A transfer assembly comprising a transfer sheet, a record sheet and an original sheet, means for removably attaching said transfer sheet and said record sheet together, said transfer sheet and record sheet attached together in such relative positions that the entire transverse upper edge of the transfer sheet is disposed below the transverse upper edge of the record sheet and the transverse lower edge of the transfer sheet extends below the transverse lower edge of the record sheet, the original sheet associated with the attached transfer and record sheet in such relative position with respect thereto that the transverse upper edge thereof is on substantially the same plane with the transverse upper edge of the record sheet, to provide a transfer assembly the upper portion of which is of reduced thickness relative to the body portion of the assembly.

2. A transfer assembly comprising, in combination, a plurality of transfer sheets each having an adhesive applied thereto, an original sheet and a plurality of record sheets, each of said transfer sheets being removably attached to a the product are of record permanent part of the next adjacent record sheet on the face thereof by means of said adhesive in such position relative to the original sheet and the record sheets that the upper transverse edges of all the transfer sheets are entirely disposed below the upper transverse edges of the original sheet and the record sheets and the portions of the original sheet and the record sheets extending above the upper transverse edges of the transfer sheets are free of one another, so that the entire upper portion of the transfer assembly is of reduced thickness relative to the body of the transfer assembly, and the lower transverse edges of the transfer sheets extend beyond the lower transverse edges of the record sheets.

3. A transfer assembly comprising in combination, an original sheet, a transfer sheet and a record sheet, said transfer sheet having a carbonized area noncarbonized strips adjacent the top and bottom transverse edges thereof, said noncarboniaed strip adjacent the top transverse edge provided with an adhesive, and the transfer sheet being removably attached to a permanent part of the record sheet on the face thereof by means of said adhesive, and the original sheet being positioned in the assembly relative to the transfer sheet and the record sheet, so that the top transverse edge of the transfer sheet is entirely disposed below the top transverse edges of the original and record sheets, and the bottom transverse edge of the transfer sheet extends below the bottom transverse edges of the original and the record sheets, the transfer sheet being free of the record sheet at all areas except at the top noncarbonized strip to permit separation of the transfer and record sheets for making erasures at any point on the record sheet when the assembly is in a type- Writer.

l. A transfer assembly in accordance with claim 3 and wherein the portions of the original and record sheets which extend above the top transverse edge of the transfer sheet are free of one another.

5. duplicating set comprising a plurality of record sheets and an original sheet having the lower transverse edge thereof disposed below said record sheets, and a plurality of transfer sheets interposed between said original and record sheets and having the lower transverse edges substantially co-planar with the lower transverse edge of said original sheet, adhesive applied on the upper surfaces of the transfer sheets facing away from said original sheet for removably attaching said transfer and record sheets together, and adhesive applied on the lower surfaces of the transfer sheets facing toward said original sheet, for removably attaching said transfer sheets and said original sheet together.

6. A duplicating set comprising a plurality of transfer assemblies and an original sheet, each transfer assembly including a transfer sheet and a record sheet, the transfer sheets being removably attached adjacent the upper edges thereof to the record sheets, and the transfer sheets extending below the lower edges of the record sheets, and adjacent transfer sheets being removably attached together adjacent the lower edges thereof and the uppermost transfer sheet of a duplicating set being removably attached adjacent the lower edge thereof to the original sheet, whereby all of the elements of a duplicating set will be removably attached together.

7. A duplicating set comprising a plurality of transfer assemblies and an original sheet, each transfer assembly including a transfer sheet and a record sheet, each transfer sheet being removably attached to the next adjacent record sheet, and one edge of each transfer sheet extending beyond one edge of each record sheet and adjacent transfer sheets being removably attached together at the extending edges thereof, and the uppermost transfer sheet of a duplieating set being reinovably attached at the extending edge thereof to the original sheet, whereby all of the elements of a duplicating set will be removably attached together.

JAMES G. IiERR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 797,302 Meacham Aug. 15, 1905 2,178,878 McAdams Nov. '7, 1939 2,253,917 Rogers Aug. 26, 1941 FOREIGN PATENTS Number Country Date 356,365 Great Britain Sept. 10, 1931 107,936 Australia June 8, 1938 

